Ace the CSET 2026: Unlock Reading, Language & Literature Brilliance on Subtest 1!

Understanding how words are built from smaller units is the focus here. Morphology studies morphemes—the smallest meaningful parts of language—and how they combine to form words. It looks at root words, prefixes, and suffixes, and how these pieces modify meaning or grammatical function. For example, happiness = happy + -ness, and unhappiness = un- + happy + -ness. It also distinguishes derivational morphology (creating new words with new meanings) from inflectional morphology (changing a word's form to express tense, number, etc.). Phonology deals with sounds, semantics with meaning, and syntax with sentence structure. So the study that focuses on the formation and structure of words is morphology.